Territory



(No Model.)

W. S. SCOTT.

PIPE, TUBE, OR SHELL EXTRAGTOR.

Patented June 19, 1888.

w Inueniok Nv PETERS. Ph0| Lilhogmph=n Washingiou. DC,

. UNITED STATES PATENT OFFI E.

WVALTER S. SCOTT, OF FORT MEADE, DAKOTA TERRITORY.

PIPE, TUBE, OR SHELL EXTRACTOR.

SPECIFICATION forming part of Letters Patent No. 384,791, dated June 19, 1888.

Application filed August 30, 1887.

To all whom it may concern.-

Be it known that I, WALTER S. Scor'r, a citizen of theUnited States, residing at Fort Meade, in the county of Lawrence and Territory of Dakota, have invented a new and useful Pipe, Tube, or Shell Extractor, of which the following is a specification.

The object of this invention is to provide a cheap and simple device adapted to be introduced into the bore of a pipe, tube, or gun-bar-' rel for the purpose of extracting an inclosed smaller tube or headless shell upon which no extraneous hold can be obtained.

Other objects and advantages of the invention will be hereinafter described, and particularly pointed out in the claims.

Referring to the drawings, Figure 1 is an elevation of an extractor constructed in accordance with my invention. Fig; 2 is a detailin elevation of the expanding-spindle. Fig. 3 is a vertical section of the expanding-spindle having the extractor mounted in position thereon. Figs. 2, 2", and 2aretransverse sections of the extractor-cylinder, taken on thelines .u m, y y, and z a, respectively, of Fig. 4.. Fig. 3 is an elevation of the extractor-cylinder. Fig. 4. is a side elevation of the extractor-cylinder. Fig.5 represents details in side elevation, show ing the extractors. Fig. 6 is a plan and side elevation of the assemblingring for connecting the extractors in position upon the extractorcylinder.

Like letters indicate like parts in all the figures.

A represents thespindle,having near its center a contracted neck, A, and at its top ahead, A". The lower end of the spindle is perforated and provided with a ring, A

B represents the extractor-cylinder, and it consists of a cylindrical body portion, B, internally bored and adapted to receive and form a sliding fit with the expanding-spindle A.

The extractor-cylinder B is oppositely and transversely recessed or cutaway, as at B and is vertically slotted, as at Bflan annular groove, B being formed in the cylinder near its top and at each side of the slot.

0 represents the extractors,two of which are employed-one mounted at each side of the cylinder B and seated in recess B thereof.

The extractor G is formed .with an exterior Serial No. 248.324. (No model.)

milled or threaded portion, 0, and a reduced projecting neck portion, 0, which, when the extractors are in position upon the cylinder B,

project into the vertical slot B at each side of u the cylinder. A notch or groove, 0, isformed in and near the top of the neck of the extractors, which. groove or notch registers with the groove B in the cylinder.

The inner faces (by which is meant those adj acent to each other) of the extractors C may be curved, as shown in Fig. 3, to form a contracted passage at their lower ends.

The extractors having been placed in position upon the extractor-cylinder B, in which is located the expanding spindle A, a split bindingring, D, is placed in position in the annular groove B and corresponding notches, 0*. As thus far described, itwill be seenthat the extractors C are secured at their upper ends by means of the ring D, and that their lower ends may be sprung outwardly to grip any obstacle, such as a headless shell in a gunbarreloratelescoped pipe ortube. Thisexpansion is accomplished by means of forcing the ex pandingspindle A down within the cylinder B. The enlarged upper portion of said spindle coming in contact with the inner faces of extractors spreads the same, whereby ahold is taken, as described.

If desired, a chain, as E, having a cross-bar, E, at its end, may be connected to the ring-A and serve as the means for drawing the spin dle within the tube, or a rod may be inserted in rear of said tube and adapted to bear upon the head A thereof, and thus force the same within the cylinder, or the two may be used in conjunction.

Having described my invention and its operation, what I claim is- 1. In an extractor of the class described, the combination of an extractor-cylinder recessed at its sides and provided with independent extractors fitted therein,with a spreader mounted between the extractors and adapted to operate the latter, substantially as specified.

2. In an extractor of the class described, the combination, with a hollow extractor-cylinder having recesses at its sides and provided with independent extractors fitted and seated in said recesses, of a spreader having awedge shape mounted in the cylinder and between the ex:

tractors and adapted to spread the latter, substantially as specified.

3. In an extractor of the class described, the combination of an extractor-cylinder having a central bore, milled or threaded extractors mounted in recesses formed in said cylinder, with a spreader adapted to fit said bore and sprclead the extractors, substantially as specifie 4. In an extractor of the class described, the combination of an extractor-cylinder having opposite recesses, an annular groove,and acentral bore, with threaded extractors mounted in said recesses and grooved to register with the annular groove of the cylinder, a binding or assembling ring seated in the grooves, and a Wedge-shaped spreader mounted in the bore, substantially as specified.

the binding-ring D, mounted in the grooves of 30 the cylinders and extractors, substantially as specified.

WALTER S. SCOTT.

Witnesses:

M. S. THOMPSON, J AMES B. ALLEN. 

